US Bridges

180 Road (rs 685) over Big Creek

Fair

Trego County, Kansas · 3.2S 5.3E of Collyer · Structure no. 000000000980200

Built
1958
67 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
182 ft
4 main spans
Daily traffic
95
2020 count
Owner
County
County Highway Agency

About this bridge

180 Road (rs 685) over Big Creek is a concrete continuous tee beam carrying 180 Road (rs 685) over Big Creek in Trego County, Kansas. It was built in 1958, so it is 67 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 95 vehicles a day, projected to reach 105 by 2043. The structure is 182 ft (55.5 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries180 Road (rs 685)
CrossesBig Creek
Location3.2S 5.3E of Collyer
RouteCounty Highway 685
CountyTrego County
StateKansas
Coordinates38.98376, -100.0203
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.1 US tons
Inventory rating19.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length182 ft (55.5 m)
Longest span50 ft (15.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic95 (2020)
Projected traffic105 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 180 Road (rs 685) over Big Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is 180 Road (rs 685) over Big Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does 180 Road (rs 685) over Big Creek carry?

About 95 vehicles per day (2020 count).

How long is 180 Road (rs 685) over Big Creek?

The structure is 182 ft (55.5 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns 180 Road (rs 685) over Big Creek?

It is owned by the County Highway Agency.